Examine source code of Baseball Instinct

{
  "theme": {
    "images": {
      "theme_frame": "ffheader.png"
    },
    "colors": {
      "frame": "#e8e5e5",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Baseball Instinct",
  "manifest_version": 2,
  "description": "From Fantasy Baseball news and advice site, <a href=\"https://outgoing.prod.mozaws.net/v1/560e43d00198a83a6d0d4f16d5952a2a18ebdad99b8ffadf694597270b2efedd/http%3A//BaseballInstinct.com\" rel=\"nofollow\">BaseballInstinct.com</a>"
}